#Question id: 2063
#Section 2: General Biology
#Question id: 14318
#Section 5: Bioprocess Engineering and Process Biotechnology
system for manufacture of single-cell protein is Methylophilus methylotrophus. This organism is produced aerobically from methanol with ammonia as nitrogen source. The molecular formula for the biomass is CH 1.6800.36N0.22; these cells contain 6% ash. If the actual yield of biomass from methanol is 42% the thermodynamic maximum, what is the oxygen demand?
#Question id: 14332
#Section 5: Bioprocess Engineering and Process Biotechnology
To ensure turbulent conditions and minimum mixing time during agitation with a turbine impeller, the Reynolds number must be at least 104. A stirred laboratory-scale fermenter with a turbine impeller 5 cm in diameter is operated at 800 rpm. If the density of broth being stirred is close to that of water. The mixing system is scaled up so the tank and impeller are 15 times the diameter of the laboratory equipment. The stirrer in the large vessel is operated so that the stirrer tip speed (tip speed = π N i D i) is the same as in the laboratory apparatus. How does scale-up affect the maximum viscosity.
#Question id: 3882
#Section 3: Genetics, Cellular and Molecular Biology
The reverse transcriptase of an animal RNA virus catalyzes:
#Question id: 653
#Section 2: General Biology
For the enzyme-catalyzed reaction S ~ P, Keq = 5, which of the following curves best represents the change in [S] that occurs with time when S is added to a solution containing the appropriate enzyme?